diff options
| author | Christian König <ckoenig.leichtzumerken@gmail.com> | 2019-09-27 14:34:25 +0200 |
|---|---|---|
| committer | Christian König <christian.koenig@amd.com> | 2019-11-08 11:33:32 +0100 |
| commit | 165d3448a1a0e8646cf62f2e31a0602651a81a60 (patch) | |
| tree | 048ed27e67888b96e62328a8e6baa51794072ac6 /drivers/gpu/drm | |
| parent | 20c012b24340a5a5f7b57d8e38dbdff5d561bfc8 (diff) | |
drm/radeon: finally fix the racy VMA setup
Finally clean up the VMA setup for radeon now that TTM exports the
necessary functions.
No functional change, but only compile tested.
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Huang Rui <ray.huang@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Link: https://patchwork.freedesktop.org/patch/339354/
Diffstat (limited to 'drivers/gpu/drm')
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_ttm.c | 29 |
1 files changed, 14 insertions, 15 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_ttm.c b/drivers/gpu/drm/radeon/radeon_ttm.c index 098bc9f40b98..91993a233cb0 100644 --- a/drivers/gpu/drm/radeon/radeon_ttm.c +++ b/drivers/gpu/drm/radeon/radeon_ttm.c @@ -881,9 +881,6 @@ void radeon_ttm_set_active_vram_size(struct radeon_device *rdev, u64 size) man->size = size >> PAGE_SHIFT; } -static struct vm_operations_struct radeon_ttm_vm_ops; -static const struct vm_operations_struct *ttm_vm_ops = NULL; - static vm_fault_t radeon_ttm_fault(struct vm_fault *vmf) { struct ttm_buffer_object *bo; @@ -891,34 +888,36 @@ static vm_fault_t radeon_ttm_fault(struct vm_fault *vmf) vm_fault_t ret; bo = (struct ttm_buffer_object *)vmf->vma->vm_private_data; - if (bo == NULL) { + if (bo == NULL) return VM_FAULT_NOPAGE; - } + rdev = radeon_get_rdev(bo->bdev); down_read(&rdev->pm.mclk_lock); - ret = ttm_vm_ops->fault(vmf); + ret = ttm_bo_vm_fault(vmf); up_read(&rdev->pm.mclk_lock); return ret; } +static struct vm_operations_struct radeon_ttm_vm_ops = { + .fault = radeon_ttm_fault, + .open = ttm_bo_vm_open, + .close = ttm_bo_vm_close, + .access = ttm_bo_vm_access +}; + int radeon_mmap(struct file *filp, struct vm_area_struct *vma) { int r; struct drm_file *file_priv = filp->private_data; struct radeon_device *rdev = file_priv->minor->dev->dev_private; - if (rdev == NULL) { + if (rdev == NULL) return -EINVAL; - } + r = ttm_bo_mmap(filp, vma, &rdev->mman.bdev); - if (unlikely(r != 0)) { + if (unlikely(r != 0)) return r; - } - if (unlikely(ttm_vm_ops == NULL)) { - ttm_vm_ops = vma->vm_ops; - radeon_ttm_vm_ops = *ttm_vm_ops; - radeon_ttm_vm_ops.fault = &radeon_ttm_fault; - } + vma->vm_ops = &radeon_ttm_vm_ops; return 0; } |